Temuera Morrison, easily. (That's actually how you spell his name, not Tumera, guys.)

As for the original topic and who my favorite Mando is, I'd have to say Kal Skirata. Kal Skirata is probably my favorite character in any book I've ever read and probably ever will. People used to ask me why I always said Hard Contact was only just "so-so" and I realized it was because there was no Kal. Kal is the reason I love Mandalorians; to be honest he made me realize I'd embraced their mindset before I even knew what they were.